Caliper&Ruler
Measure & Calibrate with Ease.
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Measure accurately in inches and millimeters on your screen. Calibrate easily using everyday objects like credit cards, rulers, AA batteries, or discs.
Unlock Precision – Your Essential On-Screen Measurement Tool!
Turn your iPhone or iPad into a versatile digital caliper. Measure objects accurately in inches and millimeters with an intuitive and easy-to-use interface.
Whether you're a DIY enthusiast, student, designer, or professional, Caliper provides precise measurements wherever you need them.
Key Features:
- Dual Measurement Units: Easily measure in both inches and millimeters.
- Intuitive Drag-and-Measure: Simply drag the slider to measure objects instantly.
- Accurate Calibration: Calibrate your screen using everyday objects such as credit cards, AA batteries, rulers, or CDs/DVDs/Blu-ray discs.
- Custom Calibration: Use any object with a known length for precise adjustment.
- Universal Compatibility: Designed for iPhone (landscape only) and iPad (all orientations).
Download Caliper and experience accurate measurements anytime, anywhere.
Ratings & Reviews
• Added the Thanks feature, allowing you to support app development.
• Improved calibration, making it easier to adjust the screen size using everyday objects such as credit cards, rulers, AA batteries, and CDs.
The developer, Jun Yamabe, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jun Yamabe
- Size
- 5.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.4 or later.
- iPhone
Requires iOS 18.4 or later. - iPad
Requires iPadOS 18.4 or later. - Mac
Requires macOS 15.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.4 or later.
- iPhone
- Languages
English and 19 more
- English, Arabic, Bengali, Filipino, German, Greek, Hebrew, Hindi, Indonesian, Japanese, Malay, Portuguese, Simplified Chinese, Slovak, Spanish, Tamil, Telugu, Thai, Traditional Chinese, Turkish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Remove Ads $2.99
- Thanks $0.99
- Copyright
- Copyright © 2025 Jun Yamabe. All rights reserved.